Yesterday, our 2nd Officer passed me in the heli lobby when I arrived, he was boarding the chopper I arrived on. He had to sign off due to personal reasons. This means that I have to be on the bridge "watch" from 0600 to 1800 every day, so much for sun tan this trip. Only way for X-zise being getting up an hour early(0500) and work out on an empty stomach, as effective as shovelling snow in the snow storm "sigh".